Free Cookie Day Crumbl 2024 Dates. Iconic cookie brand crumbl are celebrating their seventh birthday this september, and to show their appreciation for their loyal customers, will be rolling out a special offer along with some. The sandwich chain is giving 10,000 customers a chance to win one free cookie every day through the end of the year.

Each customer can get one free chocolate chip cookie per person with download of the crumbl app. The sandwich chain is giving 10,000 customers a chance to win one free cookie every day through the end of the year.